Tooth protecting and protecting integrated brush

Abstract

The invention discloses a tooth protector integrated brush, and relates to the technical field of tooth nursing, the tooth protector integrated brush comprises a shell, the side wall of the shell is provided with an opening, a cover sheet is hinged to the outer side of the opening of the outer wall of the shell, the lower side of the shell is clamped with a knob, and the outer wall of the lower side of the shell is clamped with the inner wall of the upper side of the knob. The device comprises a shell, a rotary knob is arranged in the shell, the shell can rotate relative to the rotary knob, a connecting channel is formed in the middle of the upper side of the shell, a connecting groove is formed in the upper surface of the shell, and a brush head is arranged on the upper side of the shell. And gas is pushed into the toothpaste channel through the one-way valve, so that toothpaste in the toothpaste channel is discharged, the toothpaste in the toothpaste channel is prevented from being dried and blocked, meanwhile, a small amount of toothpaste is continuously supplemented in the tooth brushing process, the tooth cleaning effect is enhanced, and the toothbrush has the advantages of being high in practicability and capable of preventing the toothpaste channel from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of tooth care, in particular to a tooth-protection integrated brush. Background Art

[0002] In daily oral care, toothbrushes and toothpaste are essential cleaning tools. However, the traditional design of separating toothpaste from toothbrush has many inconveniences, especially requiring additional steps during use, such as squeezing toothpaste and re-covering the toothpaste cap, which not only wastes time, but also may cause problems with the amount of toothpaste to be difficult to control. In addition, after long-term use of toothpaste, problems such as uneven squeezing or excessive squeezing, and excessive residue often occur, resulting in poor cleaning effect and waste of resources;

[0003] Although the existing multifunctional toothbrush integrates the functions of toothpaste and toothbrush to a certain extent, it still has some shortcomings. After squeezing the toothpaste, some toothpaste generally stays in the transmission channel, which leads to the common situation that the toothpaste dries and blocks the toothpaste channel, affecting the user experience. In addition, it is difficult for users to accurately control the amount of toothpaste used during the squeezing process.

[0004] Therefore, in response to the above problems, it is necessary to design a toothbrush device that can reasonably store toothpaste, is easy to operate, and has the function of preventing toothpaste from drying out. It can not only meet the needs of daily brushing, but also effectively solve the problems of inconvenience in carrying out and toothpaste clogging, and provide a more optimized oral cleaning solution. Summary of the invention

[0005] The purpose of the present invention is to provide a tooth-protecting integrated brush to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a tooth-protecting integrated brush comprises a shell, a side wall of the shell is provided with an opening, an outer wall of the shell is hinged with a cover sheet outside the opening, a knob is clamped on the lower side of the shell, the lower outer wall of the shell is clamped with the upper inner wall of the knob, and the shell can rotate relative to the knob, a connecting channel is provided in the middle of the upper side of the shell, a connecting groove is provided on the upper surface of the shell, a brush head is provided on the upper side of the shell, a threaded ring is provided on the lower side of the brush head, and the outer wall of the threaded ring is threadedly connected to the inner wall of the connecting groove;

[0007] The lower end of the brush head extends to the interior of the connecting channel, a toothpaste channel is provided inside the brush head, bristles are fixedly connected to the outer wall of the upper end of the brush head, the toothpaste channel connects the lower end of the brush head with the bristles on the upper side of the brush head, a toothpaste bin is provided inside the shell, an insert is fixedly connected to the upper side of the toothpaste bin, the upper side of the insert extends to the interior of the connecting channel, the outer wall of the insert contacts the inner wall of the connecting channel, the inner wall of the insert contacts the outer wall of the lower end of the brush head, and the interior of the toothpaste bin is connected with the interior of the toothpaste channel;

[0008] The shell is further provided with a discharge mechanism and an anti-drying mechanism. The discharge mechanism is located at the lower side of the shell, and the anti-drying mechanism is located at the upper side of the shell.

[0009] According to the above technical solution, a temporary toothpaste capsule is also included;

[0010] The interior of the temporary toothpaste capsule is a hollow structure, and a tubular opening is provided on the upper side of the temporary toothpaste capsule. The temporary toothpaste capsule can be placed inside the shell. After the temporary toothpaste capsule is placed inside the temporary toothpaste capsule, the inner wall of the tubular opening of the temporary toothpaste capsule can contact the inner wall of the connecting channel, and the inner wall of the tubular opening of the temporary toothpaste capsule can contact the outer wall of the lower end of the brush head.

[0011] According to the above technical solution, the discharge mechanism includes an outer tube, the lower end of the outer tube is fixedly connected to the middle upper surface of the knob, the upper end of the outer tube extends to the interior of the shell, and the middle of the outer tube is inserted with an inner tube, the side wall of the inner tube is fixedly connected with a threaded block, the side wall of the outer tube is provided with a slide groove, one end of the threaded block extends to the outside of the outer tube through the slide groove, the end of the threaded block extending to the outside of the outer tube is threadedly connected to the inner wall of the shell, the upper surface of the inner tube is fixedly connected with a top block, and the upper surface of the top block contacts the lower surface of the toothpaste bin.

[0012] According to the above technical solution, the top block can move in the up and down directions relative to the outer tube, and the outer diameter of the top block is larger than the inner diameter of the toothpaste bin, the top block is made of elastic rubber material, and the top block can be moved to the inside of the toothpaste bin. The outer wall of the outer tube is connected to a friction ring through a torsion spring, the outer wall of the friction ring is in contact with the inner wall of the shell, and the friction force between the outer wall of the friction ring and the inner wall of the shell is greater than the force required for the deformation of the torsion spring at the connection between the friction ring and the outer tube, and a limited amount mechanism is arranged inside the outer tube.

[0013] According to the above technical solution, the limiting mechanism includes a friction rod, the lower end of the friction rod is fixedly connected to the inner wall of the knob, the outer side of the friction rod is provided with a friction sleeve, the lower end of the friction sleeve is fixedly connected to a first spring, the lower end of the first spring is fixedly connected to the inner wall of the knob, the inner wall of the friction sleeve contacts the outer wall of the friction rod, the upper end of the friction rod is fixedly connected to a rubber sheet, and the limiting mechanism also includes a plurality of spacers, the outer walls of the spacers are fixedly connected to the inner wall of the inner tube.

[0014] According to the above technical solution, the radius of the rubber sheet is greater than the distance between the outer wall of the partition bar and the outer wall of the friction rod, the rubber sheet is made of rubber material, and the friction sleeve and the friction rod can heat up by friction when they move relative to each other.

[0015] According to the above technical solution, the anti-drying mechanism includes an air cavity, which is a disc-shaped cavity opened on the upper side of the shell, the lower side of the air cavity is connected to the outer side of the shell, the upper side of the air cavity is connected to the upper part of the shell through an inverted trapezoidal opening, the side wall of the air cavity is connected to the interior of the connecting channel through a circular hole, a one-way valve is fixedly connected to the inner wall of the circular hole, the output end of the one-way valve is one end close to the interior of the connecting channel, a counterweight ring is placed inside the air cavity, a second spring is fixedly connected to the inner wall of the inverted trapezoidal opening on the upper side of the air cavity, a sealing plate is fixedly connected to the lower end of the second spring, and the outer wall of the sealing plate is in contact with the inner wall of the inverted trapezoidal opening.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention is provided with a discharge mechanism, and the outer cylinder and the inner cylinder can be driven by rotating the knob, so that the top block pushes the toothpaste inside the toothpaste bin upward, thereby squeezing the toothpaste to the bristles, and the operation is convenient; after the knob is loosened, the torsion spring deflects a small angle in the reverse direction, and the top block moves slightly downward, so that the toothpaste in the toothpaste channel is drawn back downward, thereby preventing toothpaste residue and reducing unnecessary subsequent discharge of toothpaste;

[0017] By setting a limited amount mechanism, the rubber sheet contacts the spacer bar to generate resistance during the toothpaste squeezing process. The user can judge the amount of toothpaste squeezed out by feel, effectively controlling the amount of toothpaste squeezed out to avoid excessive or insufficient toothpaste. At the same time, the friction between the friction rod and the friction sleeve can soften the toothpaste, ensuring that the toothpaste is more uniform during storage and improving stability during subsequent use.

[0018] By providing a temporary toothpaste capsule, when traveling, a small amount of toothpaste can be pre-loaded into the temporary toothpaste capsule, avoiding the trouble of additional filling of toothpaste, making it easy to carry and use, especially suitable for emergency needs during short-term travel, while ensuring that the use effect of the toothpaste is not affected;

[0019] By providing an anti-drying mechanism, when the shell is shaken during brushing, the counterweight ring moves up and down in the air cavity, and pushes air into the toothpaste channel through the one-way valve, so that the toothpaste inside the toothpaste channel is discharged, preventing the toothpaste inside the toothpaste channel from drying and clogging. At the same time, a small amount of toothpaste is continuously replenished during brushing to enhance the cleaning effect on the teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the toothpaste bin structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of a temporary toothpaste capsule of the present invention;

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the limiting mechanism of the present invention;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the limiting mechanism of the present invention;

[0028] Figure 8 It is a schematic diagram of the cross-sectional structure of the toothpaste bin of the present invention;

[0029] Fig. 9 The present invention Figure 8 A is a schematic diagram of the enlarged structure of the middle part;

[0030] In the figure: 1. shell; 2. cover plate; 3. knob; 4. connecting channel; 5. connecting groove; 6. brush head; 7. threaded ring; 8. bristles; 9. toothpaste bin; 10. cannula; 11. temporary toothpaste capsule; 12. toothpaste channel; 13. discharge mechanism; 14. anti-drying mechanism; 301. outer tube; 302. inner tube; 303. threaded block; 304. top block; 305. friction ring; 306. limiting mechanism; 601. friction rod; 602. first spring; 603. friction sleeve; 604. rubber sheet; 605. spacer; 401. air cavity; 402. counterweight ring; 403. second spring; 404. sealing sheet; 405. one-way valve. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-9 The present invention provides a technical solution: a tooth-protecting integrated brush, comprising a shell 1, a side wall of the shell 1 is provided with an opening, an outer wall of the shell 1 is hinged with a cover sheet 2 on the outside of the opening, a knob 3 is clamped on the lower side of the shell 1, the lower outer wall of the shell 1 is clamped with the upper inner wall of the knob 3, and the shell 1 can rotate relative to the knob 3, a connecting path 4 is provided in the middle of the upper side of the shell 1, a connecting groove 5 is provided on the upper surface of the shell 1, a brush head 6 is provided on the upper side of the shell 1, a threaded ring 7 is provided on the lower side of the brush head 6, the outer wall of the threaded ring 7 is threadedly connected to the inner wall of the connecting groove 5, the lower end of the brush head 6 extends to the inside of the connecting path 4, and a toothpaste channel 12 is provided inside the brush head 6 The outer wall of the upper end of the brush head 6 is fixedly connected with bristles 8, and the toothpaste channel 12 connects the lower end of the brush head 6 with the bristles 8 on the upper side of the brush head 6. A toothpaste bin 9 is provided inside the shell 1, and a cannula 10 is fixedly connected to the upper side of the toothpaste bin 9. The upper side of the cannula 10 extends to the inside of the connecting channel 4. The outer wall of the cannula 10 contacts the inner wall of the connecting channel 4, and the inner wall of the cannula 10 contacts the outer wall of the lower end of the brush head 6. The interior of the toothpaste bin 9 is connected with the interior of the toothpaste channel 12. The interior of the shell 1 is also provided with a discharge mechanism 13 and an anti-drying mechanism 14. The discharge mechanism 13 is located at the lower side of the shell 1, and the anti-drying mechanism 14 is located at the upper side of the shell 1.

[0033] In daily use, the cover sheet 2 can be opened and the brush head 6 can be rotated and removed, and then the toothpaste bin 9 can be taken out of the housing 1, and the toothpaste bin 9 can be filled with toothpaste and then installed back into the housing 1, and then the brush head 6 can be rotated and fixed on the housing 1;

[0034] The temporary toothpaste capsule 11 is also included. The interior of the temporary toothpaste capsule 11 is a hollow structure, and a tubular opening is provided on the upper side of the temporary toothpaste capsule 11. The temporary toothpaste capsule 11 can be placed inside the housing 1. After the temporary toothpaste capsule 11 is placed inside the temporary toothpaste capsule 11, the inner wall of the tubular opening of the temporary toothpaste capsule 11 can contact the inner wall of the connecting channel 4, and the inner wall of the tubular opening of the temporary toothpaste capsule 11 can contact the outer wall of the lower end of the brush head 6.

[0035] When traveling, a temporary toothpaste capsule 11 can be installed inside the housing 1. A small amount of toothpaste is built into the temporary toothpaste capsule 11, and no additional filling is required;

[0036] The discharge mechanism 13 includes an outer cylinder 301, the lower end of the outer cylinder 301 is fixedly connected to the middle upper surface of the knob 3, the upper end of the outer cylinder 301 extends to the inside of the shell 1, and the middle of the outer cylinder 301 is plugged with an inner cylinder 302, the side wall of the inner cylinder 302 is fixedly connected with a threaded block 303, the side wall of the outer cylinder 301 is provided with a slide groove, one end of the threaded block 303 extends to the outside of the outer cylinder 301 through the slide groove, the threaded block 303 extends to the outside of the outer cylinder 301 and is threadedly connected to the inner wall of the shell 1 at one end, the upper surface of the inner cylinder 302 is fixedly connected with a top block 304, the upper surface of the top block 304 The top block 304 is in contact with the lower surface of the toothpaste bin 9, and can move up and down relative to the outer tube 301. The outer diameter of the top block 304 is greater than the inner diameter of the toothpaste bin 9. The top block 304 is made of elastic rubber material. The top block 304 can move to the inside of the toothpaste bin 9. The outer wall of the outer tube 301 is connected with a friction ring 305 through a torsion spring. The outer wall of the friction ring 305 is in contact with the inner wall of the shell 1, and the friction force between the outer wall of the friction ring 305 and the inner wall of the shell 1 is greater than the force required for the torsion spring to deform at the connection between the friction ring 305 and the outer tube 301. A limited amount mechanism 306 is arranged inside the outer tube 301.

[0037] Before brushing teeth, the knob 3 is rotated to make the knob 3 drive the outer cylinder 301 to rotate, and the outer cylinder 301 drives the inner cylinder 302 to rotate. Since the inner wall of the outer cylinder 301 and the outer wall of the inner cylinder 302 are both hexagonal structures, the two structures cannot produce relative rotation. When the outer cylinder 301 drives the inner cylinder 302 and the threaded block 303 to rotate, since the outer wall of the threaded block 303 is threadedly connected with the inner wall of the shell 1, the threaded block 303 drives the inner cylinder 302 to slide upward, and then the top block 304 pushes the toothpaste in the toothpaste bin 9 or the temporary toothpaste capsule 11, so that the toothpaste is squeezed to the bristles 8 through the toothpaste channel 12, so that brushing teeth is more convenient.

[0038] When the knob 3 rotates to drive the outer cylinder 301 to rotate, the outer cylinder 301 will first tighten the torsion spring at the connection with the friction ring 305, and then drive the friction ring 305 to rotate together. After the toothpaste is squeezed out, the knob 3 is released. Since the friction force between the outer wall of the friction ring 305 and the inner wall of the shell 1 is greater than the force required for the torsion spring to deform at the connection between the friction ring 305 and the outer cylinder 301, the torsion spring will drive the outer cylinder 301 to deflect in the opposite direction by a small angle, so that the threaded block 303 will drive the inner cylinder 302 and the top block 304 to move slightly downward, and the top block 304 will slightly draw the toothpaste inside the toothpaste bin 9 downward, thereby causing the toothpaste inside the toothpaste channel 12 and the toothpaste at the connecting channel 4 to move into the toothpaste bin 9, which can reduce the amount of toothpaste discharged from the toothpaste channel 12 later, and can cause the toothpaste at the bristles 8 and the toothpaste inside the toothpaste channel 12 to break;

[0039] The limiting mechanism 306 includes a friction rod 601, the lower end of which is fixedly connected to the inner wall of the knob 3, a friction sleeve 603 is sleeved on the outer side of the friction rod 601, the lower end of the friction sleeve 603 is fixedly connected to a first spring 602, the lower end of the first spring 602 is fixedly connected to the inner wall of the knob 3, the inner wall of the friction sleeve 603 contacts the outer wall of the friction rod 601, the upper end of the friction rod 601 is fixedly connected to a rubber sheet 604, the limiting mechanism 306 also includes a plurality of spacers 605, the outer wall of the spacer 605 is fixedly connected to the inner wall of the inner cylinder 302, the radius of the rubber sheet 604 is greater than the distance between the outer wall of the spacer 605 and the outer wall of the friction rod 601, the rubber sheet 604 is made of rubber, and the friction sleeve 603 and the friction rod 601 can heat up by friction when they move relative to each other;

[0040] When the knob 3 is rotated to squeeze the toothpaste, the inner cylinder 302 moves upward relative to the friction rod 601. In this process, the rubber sheet 604 continuously moves downward relative to the friction rod 601, so that resistance is generated when the rubber sheet 604 passes through the spacer 605. Since a plurality of spacers 605 are evenly distributed on the inner wall of 201, it is convenient for the user to judge the amount of toothpaste squeezed out by hand.

[0041] When the user is brushing his teeth, the housing 1 will be shaken continuously. During the shaking process, the friction sleeve 603 will be constantly moved relative to the friction rod 601 under the elastic support of the first spring 602, thereby increasing the temperature of the contact position between the friction rod 601 and the friction sleeve 603. After a few minutes of friction, the device will be left stationary to increase the temperature of the lower side of the top block 304, thereby facilitating the softening of the toothpaste, making the toothpaste more uniform inside during storage, and thereby facilitating the extrusion of a more stable amount of toothpaste during subsequent use.

[0042] The anti-drying mechanism 14 includes an air cavity 401, which is a disc-shaped cavity opened on the upper side of the shell 1. The lower side of the air cavity 401 is connected to the outer side of the shell 1, and the upper side of the air cavity 401 is connected to the upper part of the shell 1 through an inverted trapezoidal opening. The side wall of the air cavity 401 is connected to the inside of the connecting channel 4 through a circular hole. A one-way valve 405 is fixedly connected to the inner wall of the circular hole. The output end of the one-way valve 405 is an end close to the inside of the connecting channel 4. A counterweight ring 402 is placed inside the air cavity 401. A second spring 403 is fixedly connected to the inner wall of the inverted trapezoidal opening on the upper side of the air cavity 401. A sealing sheet 404 is fixedly connected to the lower end of the second spring 403. The outer wall of the sealing sheet 404 contacts the inner wall of the inverted trapezoidal opening.

[0043] During the brushing process, due to the continuous shaking of the shell 1, the counterweight ring 402 will continue to move inside the air cavity 401. When the counterweight ring 402 moves down, its upper side inhales air through the inverted trapezoidal circular hole. When the counterweight ring 402 moves up, the sealing sheet 404 blocks the inverted trapezoidal circular hole, so that the gas on the upper side of the counterweight ring 402 is continuously discharged into the interior of the connecting channel 4 through the one-way valve 405. Since the toothpaste inside the toothpaste bin 9 cannot move downward, the toothpaste inside the toothpaste channel 12 is pushed upward, and a small amount of toothpaste inside the toothpaste channel 12 is discharged from the bristles 8, so that the toothpaste inside the toothpaste channel 12 will not be blocked due to dryness, and a small amount of toothpaste is continuously added during the brushing process, so that the cleaning effect on the teeth is better.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tooth-protecting integrated brush, comprising a housing (1), characterized in that: The side wall of the shell (1) is provided with an opening, the outer wall of the shell (1) is hinged with a cover sheet (2) on the outside of the opening, the lower side of the shell (1) is clamped with a knob (3), the lower side outer wall of the shell (1) is clamped with the upper side inner wall of the knob (3), and the shell (1) can rotate relative to the knob (3), a connecting channel (4) is provided in the middle of the upper side of the shell (1), a connecting groove (5) is provided on the upper surface of the shell (1), a brush head (6) is provided on the upper side of the shell (1), and a threaded ring (7) is provided on the lower side of the brush head (6), and the outer wall of the threaded ring (7) is threadedly connected to the inner wall of the connecting groove (5); The lower end of the brush head (6) extends to the interior of the connecting channel (4), a toothpaste channel (12) is provided inside the brush head (6), the upper outer wall of the brush head (6) is fixedly connected with bristles (8), the toothpaste channel (12) connects the lower end of the brush head (6) with the bristles (8) on the upper side of the brush head (6), a toothpaste bin (9) is provided inside the shell (1), the upper side of the toothpaste bin (9) is fixedly connected with an insert tube (10), the upper side of the insert tube (10) extends to the interior of the connecting channel (4), the outer wall of the insert tube (10) contacts the inner wall of the connecting channel (4), the inner wall of the insert tube (10) contacts the lower outer wall of the brush head (6), and the interior of the toothpaste bin (9) is connected with the interior of the toothpaste channel (12); The shell (1) is also provided with a discharge mechanism (13) and an anti-drying mechanism (14); the discharge mechanism (13) is located at the lower side of the shell (1), and the anti-drying mechanism (14) is located at the upper side of the shell (1).

2. The tooth-protecting integrated brush according to claim 1, characterized in that: Also included is a temporary toothpaste capsule (11); The interior of the temporary toothpaste capsule (11) is a hollow structure, and a tubular opening is provided on the upper side of the temporary toothpaste capsule (11). The temporary toothpaste capsule (11) can be placed inside the housing (1). After the temporary toothpaste capsule (11) is placed inside the temporary toothpaste capsule (11), the inner wall of the tubular opening of the temporary toothpaste capsule (11) can contact the inner wall of the connecting channel (4), and the inner wall of the tubular opening of the temporary toothpaste capsule (11) can contact the outer wall of the lower end of the brush head (6).

3. The tooth-protecting integrated brush according to claim 2, characterized in that: The discharge mechanism (13) comprises an outer cylinder (301), the lower end of the outer cylinder (301) is fixedly connected to the middle upper surface of the knob (3), the upper end of the outer cylinder (301) extends to the interior of the shell (1), and the middle of the outer cylinder (301) is plugged with an inner cylinder (302), the side wall of the inner cylinder (302) is fixedly connected with a threaded block (303), the side wall of the outer cylinder (301) is provided with a sliding groove, one end of the threaded block (303) extends to the outside of the outer cylinder (301) through the sliding groove, the end of the threaded block (303) extending to the outside of the outer cylinder (301) is threadedly connected to the inner wall of the shell (1), the upper surface of the inner cylinder (302) is fixedly connected with a top block (304), and the upper surface of the top block (304) contacts the lower surface of the toothpaste bin (9).

4. The tooth-protecting integrated brush according to claim 3, characterized in that: The top block (304) can move in the up-and-down direction relative to the outer tube (301), and the outer diameter of the top block (304) is greater than the inner diameter of the toothpaste bin (9). The top block (304) is made of elastic rubber material. The top block (304) can move to the inside of the toothpaste bin (9). The outer wall of the outer tube (301) is connected to a friction ring (305) via a torsion spring. The outer wall of the friction ring (305) contacts the inner wall of the shell (1), and the friction force between the outer wall of the friction ring (305) and the inner wall of the shell (1) is greater than the force required for deformation of the torsion spring at the connection between the friction ring (305) and the outer tube (301). A limiting mechanism (306) is arranged inside the outer tube (301).

5. The tooth-protecting integrated brush according to claim 4, characterized in that: The limiting mechanism (306) comprises a friction rod (601), the lower end of the friction rod (601) is fixedly connected to the inner wall of the knob (3), the outer side of the friction rod (601) is provided with a friction sleeve (603), the lower end of the friction sleeve (603) is fixedly connected to a first spring (602), the lower end of the first spring (602) is fixedly connected to the inner wall of the knob (3), the inner wall of the friction sleeve (603) contacts the outer wall of the friction rod (601), the upper end of the friction rod (601) is fixedly connected to a rubber sheet (604), and the limiting mechanism (306) further comprises a plurality of spacers (605), the outer wall of the spacers (605) is fixedly connected to the inner wall of the inner tube (302).

6. The tooth-protecting integrated brush according to claim 5, characterized in that: The radius of the rubber sheet (604) is greater than the distance between the outer wall of the spacer (605) and the outer wall of the friction rod (601). The rubber sheet (604) is made of rubber. When the friction sleeve (603) and the friction rod (601) move relative to each other, the friction can heat up.

7. The tooth-protecting integrated brush according to claim 6, characterized in that: The anti-drying mechanism (14) comprises an air cavity (401), which is a disc-shaped cavity opened on the upper side of the shell (1). The lower side of the air cavity (401) is connected to the outer side of the shell (1), and the upper side of the air cavity (401) is connected to the upper part of the shell (1) through an inverted trapezoidal opening. The side wall of the air cavity (401) is connected to the interior of the connecting channel (4) through a circular hole. A one-way valve (405) is fixedly connected to the inner wall of the circular hole. The output end of the one-way valve (405) is an end close to the interior of the connecting channel (4). A counterweight ring (402) is placed inside the air cavity (401). A second spring (403) is fixedly connected to the inner wall of the inverted trapezoidal opening on the upper side of the air cavity (401). A sealing plate (404) is fixedly connected to the lower end of the second spring (403). The outer wall of the sealing plate (404) contacts the inner wall of the inverted trapezoidal opening.

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